Stimulation of hair growth by peptide-copper complexes
CA 2192944 C · Owner: Procyte Corporation · Inventors: Patt, Leonard M.; Trachy, Ronald E.; Pallenberg, Alexander J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Peptide-copper complexes are disclosed which stimulate the growth of hair on warm-blooded animals. In one aspect of this invention the peptide-copper , complexes are dipeptides or tripeptides chelated to copper at a molar ratio ranging from about 1:1 to 3:1, with the second position of the peptide from the amino terminus being histidine, arginine or a derivative thereof. The peptide-copper complexes may be formulated for administration by for example, topical application or injection. Any affliction associated with hair loss including hair loss associated with both androgenetic and secondary alopecia may be treated with the peptide-copper complexes of this invention.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed June 16, 1995 and granted October 17, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 16, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 16, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.